baber/WOPTO huggingface dataset:
Patent KR-900000926-B1 (KR)
Title: Process making of fodder for a ruminant
Inventor: PARK NO-YANG
IPC: A23K50/15
Filed: 1987-01-22
Granted: 1990-02-19
Abstract: Bacillus natto and Bacillus subtilis are inoculated into a mixture containing 50 kg of rice bran, 50 kg of chicken feed of Graminaceae, 50 kg of soybean cake, 5 kg of wheat chaff, and 2.5-3 kg of urea in water, incubated at 30-40≰C for 25 hrs (humidity= 65-75%) without shaking, and dried.  100 kg of the resulting material is mixed with 100 Kg of Biulet or Urea solution at 130-175≰C, cooled, and molded to give a final product.
Patent KR-900003043-B1 (KR)
Title: Preparation of durable epoxy(meth) acrylic polymer with oxirane-containing terminal groups
Inventor: SFINELLI HARRY J
IPC: C08F293/00
Filed: 1987-05-28
Granted: 1990-05-04
Abstract: ABA triblock polymer that have oxiranl-contg. acryl or methacryl component as the end gps. (A) and one central componet (B) is prepd. by gp. transfer polymn. at above 0≰C , using a monofuctional initiaor to make the A, then AB, then ABA segments, or a difuncfional initiator to make the B, then ABA segments. The end gps are acryl or methacryl components having oxirane gps. at the terminal positions, the B segment is standard (meth) acrylate monomer not-contg. an oxirane gp.
Patent KR-950009265-B1 (KR)
Inventor: TOMATSU SATOSHI
IPC: F23N1/08
Filed: 1987-06-13
Granted: 1995-08-18
Abstract: 내용 없음.
Patent KR-890005120-B1 (KR)
Inventor: KIM KWANG-HYON
IPC: B41J3/00
Filed: 1987-06-25
Granted: 1989-12-11
Abstract: 내용 없음.
Patent KR-900003714-B1 (KR)
Title: Compressor lubrication and noise reduction system
Inventor: BALLENTINE PAUL H
IPC: B67D7/58
Filed: 1987-06-29
Granted: 1990-05-30
Abstract: The oil pump is on the end of the crankshaft (10) and has a suction tube (40) immersed in an oil bath (25). The base of the oil bath has a cruciform baffle (20) which modifies the rotary movement of the oil into radially inward motion. An impeller (60) is fixed to the suction tube and acts as a stirrer to produce a foam whilst acting to prevent vortices in the oil flow toward the suction tube.
Patent KR-910002196-B1 (KR)
Inventor: INOUE AKIHUMI
IPC: G09G3/20
Filed: 1987-07-01
Granted: 1991-04-06
Abstract: 내용 없음.
Patent KR-900003010-B1 (KR)
Title: Process for preservation of kim-chi by treating with lower temperature and adding mustard oil
Inventor: YUN SON
IPC: A23B7/10
Filed: 1987-12-07
Granted: 1990-05-04
Abstract: The method for prolonging the aging term of KIMCHI by treating at low temperature and adding mustard oil comprises (a) sterilizing salted cabbage in the solution containing 0.05M of calcium chloride, 3% of sodium chloride and 0.1% of hydrogen peroxide at 50-55≰C for 1 hr and washing the above cabbage with water; (b) sterilizing the seasoned cabbage at 65≰C  for 1 hr and adding H2O2 and mustard powder to the sterilized cabbage; (c) adding mustard oil and 50% of sodium lactate solution to seasoned KIMCHI.
Patent KR-950009158-B1 (KR)
Inventor: BROWN STERLING
IPC: C08L69/00
Filed: 1986-08-01
Granted: 1995-08-16
Abstract: 내용 없음.
Patent KR-920005834-B1 (KR)
Inventor: TANIKAWA AKINAO
IPC: G06F13/30
Filed: 1988-01-12
Granted: 1992-07-20
Abstract: 내용 없음.
Patent KR-920005681-B1 (KR)
Inventor: MURAKAMI TOSHIO
IPC: H04N5/232
Filed: 1988-08-19
Granted: 1992-07-13
Abstract: 내용 없음.
Patent KR-950007309-B1 (KR)
Title: Image noise removing circuit of image recording & reproducing system
Inventor: YUN JONG-KYONG
IPC: G11B20/24
Filed: 1988-09-29
Granted: 1995-07-07
Abstract: means for dividing the input image signal into a luminance signal and a colour signal; a circuit for processing the divided luminance signal; means for frequency-modulating the processed luminance signal; means for band- filtering the frequency-modulated luminance signal; means for converting the divided colour signal to 629 KHz band width frequency; and means for mixing the band-pass filtered luminance signal, the converted low band-width colour signal and the frequency-modulated colour signal in a magnetic tape through an amplifier (70) and a head (75). The reproducing circuit comprises: an amplifier (95) for amplifying the pick-up image signal from the head (75); means for low-band filtering the amplified image signal; means for extracting the luminance signal by filtering the low-band filtered image signal; and means for mixing the demodulated luminance signal and the low band converted or frequency- demodulated colour signal.
Patent KR-970005011-B1 (KR)
Inventor: SASAKI TERUO
IPC: E04B1/36
Filed: 1987-10-28
Granted: 1997-04-11
Abstract: 내용없음.
Patent KR-910004886-B1 (KR)
Title: Process of unsaturated fatty acid ester for epoxy compound
Inventor: KWON YOUNG-CHIL
IPC: C11C3/00
Filed: 1989-02-18
Granted: 1991-07-15
Abstract: An epoxy compound of formlula (I) an unsatd. fatty acid ester is prepd. by reacting the unsatd. farry acid ester of formula (II) and an organic acid of formula R3COOH  with  H2O2  in  an  organic solvent in the presence of a  catalyst  and  stabilizer  at  0-150 deg.C. The catalyst  is  pref.  phosphoric  acid,  sulfuric  acid, p- toluene sulfonic  acid,  oxalic  acid,  silicagel,  citric  acid nitric acid,  etc.  The  stabilizer  is  pref.  glucose,  lactose, sorbitol or phosphate.  The  solvent  is  pref.  xylene,  benzene, toluene,  chloroform  or  ethylacetate.  In  the   formulas,   R'= R"=R"'=R=R1=R2= otefin cpd.; R3= hydrocarbon or aromatic cpd.
Patent KR-970011280-B1 (KR)
Title: Azolyalkenes and fungecides containing them
Inventor: STEFAN KARBACH
IPC: C07D409/06
Filed: 1989-04-08
Granted: 1997-07-09
Abstract: Azolylalkenes of the general formula <IMAGE>  in which R<1> represents fluorophenyl, R<2> represents alkyl, naphthyl, cycloalkyl, cycloalkenyl, a heterocycle, biphenyl or phenyl, it being possible for these radicals to be optionally substituted, and X represents CH or N, and their acid addition salts and metal complexes which are tolerated by plants, and fungicides containing these compounds.
Patent KR-930008340-B1 (KR)
Inventor: ONISHI YOUICHI
IPC: C23C14/34
Filed: 1989-05-03
Granted: 1993-08-30
Abstract: 내용 없음.
Patent KR-920002982-B1 (KR)
Inventor: YOSHIDA HIROHUMI
IPC: C08K5/5465
Filed: 1989-05-04
Granted: 1992-04-11
Abstract: 내용 없음.
Patent KR-0135757-B1 (KR)
Title: Pharmaceutical composition containing imexon as
Inventor: DIETER HERRMANN
IPC: A61K31/415
Filed: 1989-07-28
Granted: 1998-04-23
Abstract: The present invention relates to the use of 4-imino-1,3-diazabicyclo[3.1.0]hexan-2-one (imexon) as an immunosuppressive agent. Imexon selectively suppresses  beta -lymphocyte activation and can be employed for the treatment of B-cell or plasma-cell leukaemia and neoplasms. Imexon is used in the treatment of those disorders in which polyclonal B-cell proliferation is of pathophysiological, symptomatic or clinical relevance such as, for example, for autoimmune diseases.
Patent KR-0134192-B1 (KR)
Title: Fuel compositions
Inventor: TACK ROBERT DRYDEN
IPC: C10L1/18
Filed: 1989-08-24
Granted: 1998-04-18
Abstract: Cold flow properties are improved by adding in minor proportion by weight to a distillate fuel oil a polymer of a C1 to C17 alkyl vinyl ether. This polymer may be a homopolymer, a mixture of homopolymers, a copolymer of alkyl vinyl ethers of different alkyl chain length, a copolymer of one or more alkyl vinyl ethers with one or more copolymerisable monomers or a mixture of such copolymers. Typical copolymers are copolymers of alkyl vinyl ethers with alkyl acrylates, alkyl methacrylates, olefins, dialkyl fumarates or maleates, eg copolymers of n-butyl vinyl ether with di(n-tetradecyl) fumarate. Other polymers are copolymers of an alkyl vinyl ether with an ethylenically unsaturated carboxylic acid or anhydride, subsequently reacted with an alcohol or an amine or both, eg a copolymer of methyl vinyl ether and maleic anhydride reacted with n-tetradecanol, n-hexadecanol or a mixture of these alcohols.
Patent KR-910004067-B1 (KR)
Title: Cabon monoxide selective seperating method
Inventor: LEE JONG-RYOL
IPC: B01D35/02
Filed: 1989-09-08
Granted: 1991-06-22
Abstract: A  selective  separation  of  CO  comprises  several  steps. Firstly, gas mixture which  contains  CO  gas  is  introduced  and charged to the first adsorption tower (95). Then the CO gas in gas mixture is adsorbed separated, while the gas mixture in  extracted through gas exit pipe (80). Thirdly, the top gas,  which  contains CO gas that occurs during break through, is carried  to  the  next adsorption tower (96). The refined gas enters the first adsorption tower via introducing pipe by shutting gas introducing valve  (55) and opening refined gas introducing valve (59).
Patent KR-0179981-B1 (KR)
Inventor: HAILE MEHANSHO
IPC: A23L33/155
Filed: 1989-11-25
Granted: 1999-02-01
Abstract: 본 발명은 코코아, 쵸콜렛, 바닐라, 커피, 콜라, 차, 딸기, 체리, 파인애플, 바나나, 바나나 퓨레, 살구, 사과 및 이들의 혼합물로 이루어진 그룹으로부터 선택된 향미제(b) 0.05% 내지 20%, 철-슈가 착물(여기서, 대이온은 말레이트, 시트레이트, 타르트레이트, 아스코르베이트 또는 이들의 혼합물 중에서 선택된다) 중에서 선택된 철 공급원(c) 1일 추천 허용량의 10% 내지 100%, 비타민 C(d) 1일 추천 허용량의 10% 내지 300% 및 프럭토스, 글루코스, 슈크로스 및 이들의 혼합물로 이루어진 그룹으로부터 선택된 감미제(e) 0.5% 내지 75%를 무수 상태로 혼합함을 특징으로 하여, 총 수분 함량이 5% 이하이고 총 지방 함량이 5% 이하인 비타민과 미네랄이 보충된 영양식 무수 안정성 초콜렛 음료 혼합물을 제조하는 방법에 관한 것이다.
Patent KR-940010414-B1 (KR)
Title: Liquid crystal display device having metallic bus repair layer
Inventor: UKAI YASUHIRO
IPC: G02F1/13
Filed: 1989-12-11
Granted: 1994-10-22
Abstract: In an active matrix liquid crystal display device in which a source and gate buses are arranged in a matrix form, thin film transistors are provided at intersections of the source and gate buses and display electrodes are driven by applying voltage thereto via the thin film transistors, source bus repair conductive layers (41) are provided which extend along the source buses (19) in opposing relation thereto across an insulating layer (23). When any one of the source buses (19) is broken, the repair conductive layer (41) and the broken source bus (19) can be connected at both sides (43) of the broken portion (44) by laser welding (LB).
Patent KR-970008084-B1 (KR)
Title: Programming method for frequency test
Inventor: KIM CHANG-HWAN
IPC: G01R23/00
Filed: 1989-12-19
Granted: 1997-05-20
Abstract: Programming method for reducing the measuring period of the central frequency, where finds the input signal condition in case that the output value is most large when the input is varied. The said method comprising the steps of: finding the frequency that become the peak point of pulse, in the terminal(3), the pulse is the pulse that pass into the free amp(10), limiter amp(20), and band pass filter(30) in case of increasing the frequency of 50 PV(P-P) sinusoidal wave by 0.6KHZ from 36KHZ to 44KHZ; and deciding the input frequency Fc when the output become the peak value during the input frequency is increasing by 0.1KHZ in the period of =F0.5KHZ input frequency.
Patent KR-910007614-B1 (KR)
Title: Method for producing of sporaricin
Inventor: SON KYEONG-HYEON
IPC: C12P13/06
Filed: 1989-12-29
Granted: 1991-09-28
Abstract: A process for producing sporaricin by fermentation comprises: (a) pre-culturing Saccharopolyspora hirsuta ATCC 20501 (I)  at  32 deg.C and 220rpm for 2days;  (b)  inoculating  it  in  the  medium contg. ricebran oil, starch, beef ext., CSL, yeast ext., magnesium sulfate, etc, and culturing at 32-38  deg.C,  0.5-1.5vvm,  0.1-0.5 kg/cm2 and 300-400rpm for 8-12days to obtain the sporaricin B. The sporarisin B is useful for synthesis of 3-D-O-methyl sporaricin  A having antibacterial activity.
Patent KR-0139800-B1 (KR)
Inventor: KAORU CHIBA
IPC: A01N25/26
Filed: 1989-03-03
Granted: 1998-07-01
Abstract: 내용 없음.
Patent KR-930000135-B1 (KR)
Title: Measuring method and system of seal-degree
Inventor: KIM YONG-HO
IPC: G01M3/02
Filed: 1990-01-16
Granted: 1993-01-09
Abstract: The measurement device comprises a  measuring  frame  (1),  a measuring room (4) closed by a packing (5) and a cover  plate  (8) on the inside of the measuring frame so that a sample package (15) with a hole (16) in package film can be  placed  in  the  room  an induction hole (10) linked to an induction pipe (11),  a  pressure air input hole (12) linked to a hole of package film, and pressure air output holes (14)(14'). The  measurement  of  package  sealing comprises the steps: letting the sample package in  the  measuring room; sticking the film around the air input hole to the bottom of the measuring room; inputting pressure air into the  air  hole  of sample package to check the change of air flow  which  is  passing through the package.
Patent KR-960005717-B1 (KR)
Inventor: HAMADANI GOJI
IPC: B65D88/28
Filed: 1990-03-12
Granted: 1996-05-01
Abstract: 내용 없음.
Patent KR-0170374-B1 (KR)
Title: Bifidobacterium strains having high iga induction potential
Inventor: YASUI HISAKO
IPC: C12N5/078
Filed: 1990-04-20
Granted: 1999-02-01
Abstract: The present invention is to provide an easy, rapid method for screening a great amount of substances having IgA induction potential. The IgA induction potential herein mentioned means the potential to activate and enhance the activity of IgA production cells to produce secretory-type IgA in response to antigen. The present invention is to provide bacterial strains of genus Bifidobacterium obtained by the method for screening substances having IgA induction potential. More specifically, the present invention is to provide YIT 4061, YIT 4062 and YIT 4063. The three strains obtained by the present invention have strong IgA induction potential. Due to the fact that the Bifidobacterium strains have been known not to show any pathogenicity for humans and animals, the IgA induction potential of the three strains may be considered to be the one as adjuvant actions as non-specific stimulation of antibody production cells to process antigen more effectively, along with antigenicity as foreign bodies of themselves.
Patent KR-930002804-B1 (KR)
Inventor: ISHIKAMI TOSHIO
IPC: H01L23/433
Filed: 1990-05-22
Granted: 1993-04-10
Abstract: 내용 없음.
Patent KR-100189307-B1 (KR)
Title: Method and apparatus for recording signals on a record carrier, measurement device and record carrier
Inventor: BAKX JOHANNES LEOPOLDUS
IPC: G11B7/125
Filed: 1990-05-28
Granted: 1999-06-01
Abstract: An apparatus and method are revealed for recording signals on a record carrier (1) with the aid of a radiation beam (15). The signals are recorded in the form of optically detectable marks (30, 31) in parallel tracks (4) of substantially constant track pitch (q). The write intensity of the radiation beam (15) is adjusted in such a way that the width (p) of the optical marks corresponds to the track pitch (q). Moreover, a method and a device are described by means of which the optimum write intensity of the radiation beam (15) can be determined.
Patent KR-940005697-B1 (KR)
Inventor: AKAOKI TAKAO
IPC: G11C29/04
Filed: 1990-08-23
Granted: 1994-06-22
Abstract: 내용 없음.
Patent KR-930010878-B1 (KR)
Title: Threshold voltage referenced circuit used in bulk effect
Inventor: BANG SANG-RYONG
IPC: H03K17/00
Filed: 1990-08-31
Granted: 1993-11-15
Abstract: Reference voltage circuit using  CMOS  transistors,  supplies the stable   reference   voltage.   Depletion   and   enhancement transistors  utilize  bulk  voltage  and  realize  the  threshhold voltage difference by compensating the variant  voltage  according to  temperature  variation.  This  circuit  includes   transistors (M1,M2) and (M3,M4). The source of transistor (M1) connects to the anode of diode (D1) and the cathode of diode (D1) connects to  the anode of diode (D2) and the source of transistor (M2). The bulk of transistor (M2) connects to the cathode of diode (D2). The gate of transistor (M7) connects to the gate of transistor  (M5)  and  the source of transistor (M6) connects to the resistors (R1,R2).
Patent KR-930005818-B1 (KR)
Title: Method of driving vcr in direct brodcasting system
Inventor: BAEK UN-KIL
IPC: G11B27/11
Filed: 1990-10-31
Granted: 1993-06-25
Abstract: An  automatic  VCR  driving   method   uses   infrared   ray transmitting and receiving sections for  automatically  driving  a VCR at the reservation time. A DBS receiver has an IR  transmitter and the VCR has an IR receiver. The  IR  transmitter  in  the  DBS receiver transmits the  infrared  rays  at  the  reservation  time stored in a microcomputer, and the IR receiver in the VCR receives the infrared rays reflected from the  wall.  The  VCR  starts  the reservation record of the satellite broadcasting when the infrared ray arrives at the VCR.
Patent KR-950012533-B1 (KR)
Inventor: BRAQUET PIERRE
IPC: C07F9/09
Filed: 1990-12-21
Granted: 1995-10-18
Abstract: 내용 없음.
Patent KR-920010777-B1 (KR)
Title: Electroplating steel sheet with two layer being of alloy metal and process for making
Inventor: LEE JAE-RYUNG
IPC: C25D5/10
Filed: 1990-12-31
Granted: 1992-12-17
Abstract: An alloy electroplated steel plate consists of (1) the  lower electroplated  surface  layer  comprising  Zn-Ni-Cr  alloy   which contains 5-20 wt.%  of  nickel,  0.1-0.5  wt.%  chromium  and  the residual iron, having the thickness of at least  10  g/m2  on  one side of steel plate and (2) the upper  layer  comprising  Fe-Zn-Mn alloy electroplating layer which contains 5-30 wt.%  zinc,  0.1-10 wt.% manganese and the residual iron, having a thickness  of  more than 0.5 g/m2. The bilayered alloy steel plate is electroplated by controlling and applying to  the  following  conditions:  (a)  the total metallic concentration has the range from 0.5 mol/l  to  the critical solubility, (b) the amount of zinc ion and manganese  ion in this concentration is 1-40 mol.%, (c) the  ionic  concentration of chloride is 5.0-1.0 mol, and the pH of chloride is 1.0-4.0, (d) the current density in the chloride bath is 250  or  20-150  A/dm2 and the relative flow velocity is 20-200 or 30-120 m/min.
Patent KR-920002143-B1 (KR)
Title: 5-substituted uridine derivatives and intermediates for their preparation
Inventor: TERADA TADAFUMI
IPC: C07H23/00
Filed: 1989-07-11
Granted: 1992-03-12
Abstract: 5-substituted uridine derivatives of formula (I) and their salts; and 5-substituted-5'-trityl uridine derivatives of formula (II) are new: where X is F or trifluoromethyl; R1 and R2 are -OSiR4R5R6, OH, aminoacyloxy (the amino group of which may be substd. by lower alkyl) or carboxyalkylcarbonyloxy; R4-R6 are 1-10C alkyl, -(CH2)nPh or -SiR7R8(OH); n is 0-2; R7 and R8 are lower alkyl; R3 is -OSiR4R5R6, H, OH, aminoacyloxy (the amino group of which may be substd. by lower alkyl) or carboxyalkylcarbonyloxy; at least one of R1-R3 is -OSiR4R5R6; when X is F, then R3 is not H; R21 is OH or -OSiR4R5R6; R31 is H, OH or -OSiR4R5R6.
Patent KR-940006590-B1 (KR)
Inventor: AN YONG-HO
IPC: H04N9/16
Filed: 1991-02-01
Granted: 1994-07-22
Abstract: 내용 없음.
Patent KR-960000968-B1 (KR)
Inventor: SKIMOTO KATZUAKI
IPC: B41J17/02
Filed: 1991-03-29
Granted: 1996-01-15
Abstract: 내용 없음.
Patent KR-930010117-B1 (KR)
Title: Semiconductor device of bimes structure
Inventor: JONG CHOL-HUI
IPC: H01L29/812
Filed: 1991-04-12
Granted: 1993-10-14
Abstract: The semiconductor device of Bi-MOS structure is  prepared  by forming an n-type buried film (12) on the bipolar area, forming an n-type epitaxial film (B) to connect the substrate with the buried film, forming  device-isolating  film  (14)  thereon,  forming  a bipolar device on the film (13), forming 1st metal gate  electrode (15a) on the MES-device activating area of the film (13),  forming 1st schottky barrier (17a) on the interface of 1st  electrode  and film (13), forming 1st MES transistor of 1st  high  concn.  n-type impurity at both ends of 1st electrode ends,  recessing  the  film (13) at the activating area,  forming  2nd  metal  gate  electrode (15b) thereon, forming 2nd  schottky  barrier  (17b)  between  2nd electrode (15b) and the substrate, forming 2st MES  transistor  of 2nd impurity at both ends of 2nd electrode.
Patent KR-0179369-B1 (KR)
Inventor: GROSSO JOHN A
IPC: C07F9/572
Filed: 1991-04-30
Granted: 1999-05-15
Abstract: 본 발명은 안지오텐신 변환 효소를 억제하는 고혈압치료제인 포시노프릴의 동질이상체염을 선택적으로 제조하고 상호전환시키는 방법에 관한 것이다. 각 동질이상체는 알카리 금속 담체, 포시노프릴, 물 및 케토기 및(또는) 수산기 함유 용매와 혼합시키고, 이 반응 혼합물로부터 형성된 동질이상체를 단리시킴으로써 제조된다. 물의 양이 물 및 용매의 양의 약 0.2%를 초과하는 경우 더 발열성이 적은 동일이상체 A가 제조되고, 약 0.2% 이하인 경우 더 발열성인 동질이상체 B가 제조된다.
Patent KR-930010262-B1 (KR)
Title: Range
Inventor: KIM YONG-DO
IPC: F24C7/04
Filed: 1991-09-09
Granted: 1993-10-16
Abstract: The cooker for heating the cooking material  by  far-infrared heat energy of a halogen lamp, has a  safety  device.  The  cooker having a micom (22), a power supply switch (SW),  a  halogen  lamp power generating section (25) for radiating the  far-infrared,  an output level display section (31)  for  displaying  the  level  of output signal corresponding to input signal, a PCB temp. detecting section (29)  for  preventing  the  increase  of  temp.  at  PCB, comprises a safety relay operating section (26) for switching  off the safety switch which converts operation of the micom to  safety mode when input signal is not offered in a certain setting time; a safety relay operation displaying section (28) for displaying  the state of the section (26); an alarming section (24) for generating alarming sound when the disorder of the cooker is found.
Patent KR-950001465-B1 (KR)
Title: Cremation furnace
Inventor: AN BYONG-KYU
IPC: F23G5/00
Filed: 1991-11-04
Granted: 1995-02-24
Abstract: The invention can incinerate a number of discarded tires to yield carbon, bunker-C oil from the tires. The burning gases are cleaned and reburned up to have complete combustion. The heat generated from combustion gases can be used as energy for industries. The incinerator consist of a furnace (10), a cleaning device (60), a re-burnning device (80), a cooling device (90). The incinerator has a main body (11), a combustion chamber (15), a carbon collecting chamber (18), an air supplying part (20), and a firing part. The cleaning device has filters (62,62'), several pipes penetrating the water chamber, a centrifugal seperator seperating remaining bunker-C oil in combustion gases. The re-burning device make the combustion gases to have perfect combustion state.
Patent KR-940006428-B1 (KR)
Title: Process for the preparation of firebrick
Inventor: JONG DU-HWA
IPC: C04B35/56
Filed: 1991-12-30
Granted: 1994-07-20
Abstract: The silicon carbide based refractory brick is manufactured by (a) mixing 65-80 wt.% silicon carbide and 20-30 wt.% the mixture of which SiC and metallic silicon powder and residual carbon are contained in the ratio of 2.5:1.0-3.7:1.0, (b) carbonizing this mixture at 800-1,100 deg.C, (c) adding 4.0-7.0 wt.% phenolic resin to the carbonized mixture, (d) molding the secondary added mixture with uniaxial or isotropic pressing and drying, (e) firing the molded brick at 1,500-1,600 deg.C for 30-40 hrs. in atmosphere of argon.
Patent KR-940005678-B1 (KR)
Inventor: KIM NAM-KYU
IPC: G03G15/00
Filed: 1992-02-21
Granted: 1994-06-22
Abstract: 내용 없음.
Patent KR-940004373-B1 (KR)
Title: Control circuit for driver brush of vacuum cleaner
Inventor: PARK YONG-SOP
IPC: A47L9/04
Filed: 1992-03-21
Granted: 1994-05-23
Abstract: a direction detecting means for detecting signals related with the forward or retreat of a suction unit; and a microcomputer for detecting the forward or retreat of the suction unit and outputting forward or reverse rotation signal to a motor for driving the rotation brush, thereby changing the rotation direction of the rotation brush.
Patent KR-950011340-B1 (KR)
Inventor: USHIMA HIRODO
IPC: H02G15/103
Filed: 1992-04-16
Granted: 1995-09-30
Abstract: 내용 없음.
Patent KR-960005859-B1 (KR)
Inventor: OOTA MICHIDAKA
IPC: B62D25/08
Filed: 1992-04-23
Granted: 1996-05-03
Abstract: 내용 없음.
Patent KR-0130555-B1 (KR)
Title: Esterification process
Inventor: PAPA ANTHONT JOSEPH
IPC: C07C69/003
Filed: 1992-07-01
Granted: 1998-04-07
Abstract: An improved esterification process for producing volatile product esters by reacting a lower linear hydrocarbyl carboxylic acid with an alcohol containing from 2 to 10 carbon atoms, in a substantially non-aqueous medium, the improvement comprising minimizing the amount of acidic sulfate contained in the product ester by employing as the esterification catalyst a long chain alkylbenzene sulfonic acid catalyst, the alkyl radical containing from 8 to 20 carbon atoms, or mixtures of such catalysts.